The colour of blood in earthworm is

Blood of earthworm is

The colour of the body in earthworm is brown due to presence of

The colour of the body in earthworm is brown due to the presence of

The colour of blood in cockroach

The colour of the blood in snail

The oxygen carrier in blood of earthworm is

Blood cell of earthworm lack haemoglobin. But blood of earthworm is red in colour. How do you account for it?

The flow of blood in the dorsal blood vessel of earthworm is

The flow of blood in the dorsal blood vessel of earthworm is